The guajillo chili's thin, deep-red flesh has a green tea flavor with berry overtones. Its fruits are large and mild in flavor, with only a small amount of heat (rating 2,500 to 5,000 on the Scoville scale). They are sometimes used to make the salsa for tamales; the dried fruits are seeded, soaked, pulverized to a thin paste, then cooked with salt and several other ingredients to produce a thick, red, flavorful sauce.
Guajillo chilies may be used in pastes, butters, or rubs to flavor all kinds of meats, especially chicken. Alternatively, they can be added to salsas to create a sweet side dish with a surprisingly hot finish.